Add validate-pyproject back to pre-commit

ruff does not validate the pyproject.toml. We need
to add the validate-pyproject hook back to pre-commit.

.pre-commit-config.yaml

@@ -1,8 +1,13 @@
-- repo: https://github.com/astral-sh/ruff-pre-commit
-  # ruff version
-  rev: v0.6.2
-  hooks:
-    # run the linter
-    - id: ruff
-    # run the formatter
-    - id: ruff-format
+repos:
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    # ruff version
+    rev: v0.6.2
+    hooks:
+      # run the linter
+      - id: ruff
+      # run the formatter
+      - id: ruff-format
+  - repo: https://github.com/abravalheri/validate-pyproject
+    rev: v0.10.1
+    hooks:
+      - id: validate-pyproject